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March 10, 2020 13:53
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| /* REXX */ | |
| 'cgiutils -status 200 -ct text/html' | |
| say '<HTML>' | |
| say '<BODY>' | |
| say '<H1>Processing forms with CGI scripts</H1>' | |
| say '<P>' | |
| say 'This is an example of a CGI script which uses the <CODE>' | |
| say 'cgiutils</CODE> and <CODE>cgiparse</CODE>' | |
| say 'functions to create a valid HTTP header and parse forms data,' | |
| say 'respectively.' | |
| say 'The <CODE>cgiutils</CODE> program is used to create' | |
| say ' a set of HTTP' | |
| say 'headers for the CGI script output.' | |
| say '<P>' | |
| say 'The <CODE>cgiparse</CODE> program is used to extract' | |
| say ' data submitted as HTTP GET or POST requests from' | |
| say 'forms The program parses variables from the CGI QUERY_STRING' | |
| say 'environment variable.' | |
| say 'The <CODE>cgiparse</CODE> program is useful for' | |
| say 'extracting information such as the value of' | |
| say 'a specific form field or the number of unique fields submitted' | |
| say 'from a form.' | |
| say 'This information can then be processed by CGI scripts in' | |
| say 'performing their intended functions.' | |
| say '<p>' | |
| say 'Some examples of how the <CODE>cgiparse</CODE> program' | |
| say ' can be used are shown below' | |
| say '<HR>' | |
| say '<H2>Parsing forms requests using <CODE>cgiparse' | |
| say '</CODE>' | |
| say '</H2>' | |
| say '' | |
| say 'The following is an example of the output that is generated by' | |
| say 'using the -form option of the' | |
| say '<CODE>cgiparse</CODE> command. The -form option' | |
| say 'will parse the QUERY_STRING as a form request' | |
| say 'and output the fields as a string of variables.' | |
| say '<P>' | |
| say 'The format of the <CODE>cgiparse</CODE> command is' | |
| say '<CODE> cgiparse -form </CODE>.' | |
| say '<P>' | |
| say '<CODE>' | |
| 'cgiparse -form' | |
| say'</CODE>' | |
| say '<HR>' | |
| say '<H2>Querying values using <CODE>cgiparse</CODE>' | |
| say '</H2>' | |
| say 'The following is an example of using the <CODE>cgiparse' | |
| say '</CODE>' | |
| say 'command to query the values of specific' | |
| say 'fields parsed from the QUERY_STRING.' | |
| say '<P>' | |
| say 'The format of the <CODE>cgiparse</CODE> command is' | |
| say '<CODE>cgiparse -value <CITE>fieldname</CITE>' | |
| say '</CODE>' | |
| say '<P>' | |
| say 'Value for variable 1 = <CODE>' | |
| 'cgiparse -value var1' | |
| say '<BR></CODE> ' | |
| say 'Value for variable 2 = <CODE>' | |
| 'cgiparse -value var2' | |
| say '<BR></CODE>' | |
| say 'Value for variable 3 = <CODE>' | |
| 'cgiparse -value var3' | |
| say '<BR></CODE>' | |
| say 'Value for variable 4 = <CODE>' | |
| 'cgiparse -value var4' | |
| say '<BR></CODE>' | |
| say 'Value for variable 5 = <CODE>' | |
| 'cgiparse -value var5' | |
| say '<BR></CODE>' | |
| say 'Value for variable 6 = <CODE>' | |
| 'cgiparse -value var6' | |
| say '</CODE>' | |
| say '<P>' | |
| say '<HR>' | |
| say '<H2>Determining the number of fields in QUERY_STRING using' | |
| say '<CODE>cgiparse</CODE></H2>' | |
| say 'The <CODE>cgiparse</CODE> function can also be used to' | |
| say 'determine the number of unique fields that are submitted with' | |
| say 'a form.' | |
| say '<P>' | |
| say 'The format of the <CODE>cgiparse</CODE> command is' | |
| say '<CODE>cgiparse -form -count</CODE>.' | |
| say '<P>' | |
| say 'Number of unique fields = <CODE>' | |
| 'cgiparse -form -count' | |
| say '<BR></CODE>' | |
| say 'As Keywords:= <CODE>' | |
| 'cgiparse -keywords' | |
| say '<BR></CODE>' | |
| say '<HR>' | |
| say '</BODY>' | |
| say '</HTML>' |
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